With six daughters all aged 30, dad Graham Walton knows there is every chance there could be wedding bells in the air at some point.

And as three of them are already engaged, that moment may come sooner rather than later for the 63-year-old.

So the painter and decorator has prepared himself well by writing wedding speeches for all six of them – even though none of them have actually set a date for their big day yet.

Graham said: “Be prepared for anything that happens… that’s what having six girls has taught me.”

As father to the world’s only all-female ­sextuplets, Graham has been the sole man in a house full of women since wife Jan gave birth to Hannah, Luci, Ruth, Sarah, Kate and Jennie on November 18, 1983.

The girls grew up under the watchful eye of TV cameras since they were born in Liverpool.

But at 18 they decided to live more private lives. Now they are returning to our screens for a new ITV documentary, The Waltons Sextuplets At 30.

Babies: Walton Family Sextuplets (Photo: Sunday Mirror)

And Graham has enjoyed every minute of those 30 years – even enjoying a sideline career as an after-dinner speaker delivering a talk called My Life With Seven Women.

Today, only Luci and Hannah live with their parents in the family home in Wallasey, Wirral. Graham converted the three-storey Victorian house himself so each girl had their own bedroom.

He said: “But they were in and out of each other’s room most of the time. They’d swap clothes, swap beds, swap everything…even swap boyfriends later on. I’m only kidding.”

Graham told how he misses the ones who have left. He added: “I don’t mind if they come back. It’s an empty feeling when nobody’s here.

“I don’t like the silence so I put the music on. I like the noise. You get used to the noise over the years.”

Hannah moved back with her mum and dad to save for her own home. The ­optician’s manager and supply teacher, who is single, told of the moment she realised hers wasn’t your average family.

Walton Sextuplets are nine years old (Photo: Daily Mirror)

She said: “When we started our first day of school there were photographers and people outside the gates. That’s different isn’t it? When I’m in the opticians all the old ladies come in and ask questions. They want to know what we’re up to.”

HR admin assistant Kate is also single but lives in a flat about 10 minutes away from Graham and Jan and said she has no plans to settle down.

She added: “I just don’t feel ready for that now. I’ve been on a couple of dates but I haven’t got time. I’m too busy. I just keep going out and having fun.”

Ruth is the latest sister to get engaged after civil service worker Rob proposed on Valentine’s Day. She was the one who felt most strongly about having a private life and refused to do any more filming when she reached 18.

The call centre worker said: “When you’re a teenager you’re very into yourself and don’t like people being intrusive.

“I used to go out and people knew who I was. They’d say not so nice things. I just didn’t like it.”

GP admin assistant Sarah, who is engaged to restaurant worker Kieran, 31, describes herself as “one of the quieter ones”. The first of the Walton girls to buy her own home, she said: “When I moved out I did notice a big difference.

“From it being a chaotic house to a fairly quiet one. It came as a bit of a shock to be honest with you but I’m used to it now.”

To mark their 30th birthday last November, all six girls got a matching heart tattoo. Jennie was behind it.

She said: “It’s always been about the six hearts and they represent each one of us. They are all interlined like us.”

Jennie is the only one of the six sisters to venture away from Merseyside. She lives in Leeds with boyfriend Matt, 27. The pair met when they were both working as entertainers in Spain. She runs a confectionary business.

She said: “My sisters are always with each other and I miss out on all that.

“I’m on the phone constantly, texting or ringing all the time. I speak to them about 20 times a day.”

Luci has been engaged to bakery supervisor Paul, 31, for the three years. She moved back in with Graham and Jan, 61, while she saves for a mortgage.

The air stewardess said: “I’ve never minded having a long engagement. I’d rather get my house first then do it. There’s no rush.”

After Graham and Jan got together they knew it would not be easy to start a family. At 16 she had been told she was unlikely to conceive ­naturally. Doctors gave her fertility drugs but when that failed, they looked at adoption.

Jan said: “We got a letter from the adoption agency to say we’d been accepted as parents of the next baby or twins.

“Gray was quite ­horrified. He said: ‘Let’s start at one at a time’.”

Kids: Janet Walton with her sextuplets

But as they waited for more news of adoption, the couple struck lucky on their 13th round of fertility treatment. However, there was a massive shock in store when a scan revealed Jan was carrying not just one, but six babies.

Jan, a fundraiser for the neo-natal intensive care unit where the girls were born, said: “These days multiple births are more common but no one knew what the outcome would be.”

The girls were born at 31-and-a-half weeks by Caesarian within just four minutes of each other.

Graham took a year off work to help Jan care for them and has fond ­memories of that time.

He said: “Jan used to say we must go out every day, just because we’ve got six ­children it must not stop us from doing what ­everybody else does.

“We had papooses so we’d have one baby each at the front and two each in double buggies. It was ridiculous, really.

Graham said: “When they were about three we went to Southport for the day. We were all walking down the main street and decided to go in a sweet shop but Sarah with her head in the clouds carried on walking.

“I ran out quickly and saw a woman holding Sarah’s hand and walking us back. She said to me, ‘Oh here’s your little Sarah. I’ve seen you on the telly but I never thought I’d find a Walton.’ That was the only time and it was minutes but it was a panicky moment.”

After 30 years, Graham has clearly got an awful lot of memories and funny tales to tell about his girls.

Which will give him plenty of material for those father of the bride speeches when one, or all, of them finally gets round to trying the knot.

* The Walton Sextuplets at 30 is on ITV, tonight, Thursday April 17, at 9pm